Tip-forming device for billiard cues and the like.



M. BOHLIG.

TIP FORMING DEVICE FOR BILLIARD CUES AND THE LIKE APPLICATION FILEDAue.26. 1915.

1-, 1 59 89 1 Patented Nov. 9, 1915.

llll 'n Iruzen- Zor I niar tifi COLUMBIA PLANOORAPH co., WASHINGTON, Dvc.

' 1 any.

MARTIN IBOHLIG, OF ST. PAUL, MINNESOTA.

TIP-FORMING DEVICE FOR BILLIARD CUES AND THE LIKE.

Application filed August 26, 1915.

To all whom it may concern:

Be it known that I, MARTIN BOHLIG, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented new and useful Improvements in Tip-Forming Devices forBilliard-Cues and the like, of which the following is a specification.

My invention relates to improvements in tip forming devices for billiardcues of the class illustrated and described in Letters Patent No.1,123,472 issued to me on Jan. 5,1915.

ts object is to provide improvements in tools of this kind havingcutting means and gripping and centering devices for securing a billiardcue in position with relation to the cutting means, together withimproved feeding mechanism, adapted to cause the cutting means to trimthe cue positively and uniformly and also to automatically control saidmeans so as to limit and finish the out.

My invent-ion also includes novel features of construction which will bemore fully hereinafter described and pointed out in the claims.

In the drawings, Figure 1 is a side elevation of my improved device;Fig. 2 is a longitudinal central sectional view thereof partly brokenaway; Fig. 3 is a fragmentary sectional view taken on the line 33 ofFig. l and Figs. 4 and 5 are detail plan views of the gearingconstituting a part of the feeding mechanism.

As illustrated in the drawings, my invention comprises generally a baseA, a carriage B slidable on said base, a cutting head C revoluble on thecarriage and feeding mechanism D for moving the carriage upon the baseand securing the former with respect to the latter.

The base A consists of a circular crown plate 10, a circular base plate11 and diametrically opposed posts 12 joining said plates 10'and 11. Thecrown plate lO is perforated at its center, the periphery of saidperforation forming an annular beveled shoulder 13. The base plate 11 isformed with a central threaded bore 14. to

receive the externally threaded sleeve 15. An annular grip bearing 17having a central bore and beveled internally at'its upper edge to forman annular shoulder 18 is supported upon the annular flange 19 withinsaid Specification of Letters Yatent.

Patented Nov. 9, 1915.

Serial No. 47,508.

sleeve. A. tubular grip 20 is formed with slots 21 therein to furnish aresilient clutch for the cue. Beveled annular heads 22 and 23 areprovided near the ends of said grip, the head 22 being designed to bearagainst the beveled shoulder 13 of the crown plate 10, while the head 23is adapted to impinge against the beveled annular shoulder 18 of thebearing 17. Said bearing 17 is advanced when the sleeve 15 is turned inone direction and forces the beveled heads 22 and 23 against saidbeveled shoulders, thus compressing the grip, and reverse revolutionpermits the return of said bearing and the expansion of the grip.

The carriage B, movable upon the base A, consists essentially of acircular bearing plate 24 formed with a central bearing 25 thereon, aguide ring 26 and diametrically opposed posts 27 joining the bearingplate and ring. These posts 27 are slidable longitudinally in the crownplate 10 of the-base A and said guide ring 26 is perforated to slidablyreceive the posts 12 of said base.

The head C includes a hollow plug 28,'and a blade holder 29. The plug 28threaded externally at its upper end is journaled in the bearing 25 ofthe carriage B and is provided at its lower end with an annular flange30 separated from said bearing 2d by a series of ball bearings 31, whichreceive the end thrust of the head C. A collar 32, constituting a partof the feeding mechanism D, hereinafter described, is screwed upon thethreaded end of the plug 28. The blade holder 29 is a centrallyperforated disk provided with a dependent, internally threaded extension33, which is screwed upon the sleeve 28 against the collar 32. Said diskis formed with a groove 3 1'to receive a cutting blade 35 of suitabledesign and is'supplied with a thumb nut 36 to secure said blade. Ahandle 37 attached to the lower side of the blade holder 29 providesmeans for turning the head C.

Improved mechanism D positively and uniformly moves the carriage B uponthe base A and also automatically limits such movement. This mechanismcomprises essentially the toothed collar 32 above mentioned, a gearwheel 38, arranged to mesh with said toothed collar, a screw 39, on thecarriage B, upon which said gear wheel is mounted, an arm 10 pivoted onthe base A and supplied with a threaded bearing 41 to engage said screw,and a guide lever 42 on the carriage B to slidably support said arm 40in engagement with said screw and to secure the carriage wlth respect tothe base.

'The collar 32 is preferably supplied with a,

single rounded tooth 32 projecting from the periphery thereof, which isindented or cut away on both sides of said tooth as clearly shown inFigs. 4 and 5. The gear wheel 38 is formed with radial notches 43 toengage the tooth 32 (see Fig. 4) and portions 44 of the periphery ofsaid plate between said notches are concave to lit against the periph- Very of the collar 32 (see Fig. 5).

each revolution of the head C, the tooth 32 Upon meshes with a notch 43in the gear wheel 38 and turns said wheel a partial revolution. Duringthe interval when the tooth 42 is disengaged from the gear wheel 38, theperiphery of the collar 32 rests against one of the concave segments 44ofsaid wheel and sescrew 39.

crown plate 10 bears against the end of the arranged so that when thelever 42 is tilted beneath the arm said lever (which is preferarm40,upon which said bearing 41 is secured, and operates to swing said armoutward and disengage the bearing from thescrew 39. The lever 42 pivotedupon the I carriage B is formed with a central graduated slide 48 anddepressions 49 at the ends of said slide. This lever is adapted'to swingbeneath the end of the arm 40 opposite the threaded bearing 41 andconnect the slide 48 thereon With the arm 40 to tilt said arnr againstthe action of the spring 47 and mesh said threaded bearing 41 with thescrew 39.

The arm 40 is beveled at 50 and notched at '51 as shown in Fig. 3. Thelever 42 impinges against the beveled portion 50 in tilting the arm andis slidably retained beneath said arm by the notch 51 which receivessaid. I provide a plunger 52 seated in a lever. bore '53 in the crownplate 10 to brace and hold the lever 42 at the point of engagement withthe arm 40. A coiled spring 54 compressed behind the plunger yieldinglyforces it outward and a pin 55 in the crown plate passing through anotch 56 in said plunger limits its longitudinal movements. Said plunger52 is rounded at its outer end and is ably round in cross section) willdepress the plungerand pass slightly beyond the aXis thereof beforeentering the notch 51 in the arm 40.- By this arrangement, it will beseen that the lever 42 is yieldingly held beted to tilt by the actionofthe spring 47, thus, 7

disengaging the bearing 41 from the screw 39. The arm 40 'fits snuglyinto the depressions 49 and rigidly secures the carriage B withi'espectto the base.

In use, the carriage B is set with respect to the. base A to obtainthedesired cut by first swinging the lever 42 from beneath the arm 40, thensliding said carriage upon said base to the desired point and finallyreturning said lever to position beneath the arm. The one or otherobject is secured within the grip by tightening the "sleeve '15 and thehead 0 is turned to cut the cue. Upon each revolution of the head 0 thescrew 39 is' turned a partial revolution and the carriage is advanced astep one way or the'other according to the direction in which the head Cis turned. During the movement of the i carriage Brupon the base A, thelever 42,

passes beneath the arm 40, the slide48 thereon supporting the end ofsaid arm against .the action of the spring 47; When either of thedepressions 49 reach the. arm 40, said arm tilts from the slide 48intothe depres= sion, thus rendering the feeding mechanism D inoperativeand firmly holding .thecarriage B in engagement with the base A.-Contlnued rotation of the head accurately finishes the out upon the one,which may I then be removed from the device by loosening the sleeve 15.

' Having described my invention, what I claim as new and desire toprotect by Letters Patent is :4

1. Ina tip forming device for billiard cues, and the like, thecombination of a base, a carriage slidable on said base, a grip withinthe baseto secure an object, a head revoluble'upon the carriage, acuttingblade on said head, a screw on the carriage, gearing connectingsaid head and screw, a tiltable arm on the base adapted to engage saidscrew and a slide on the carriage arranged to hold said arm inengagementwith said. screw;

2. In a tip forming device for. billiard I.

cues, and the like, the combination of a base, a carriage shdable onsald base, a gr1pwith-- 1n the base to secure an object, a headrevoluble upon the carriage,'a cutting blade on said 1 necting said headand screw, and designed screw and a slide' on the carriage arranged tohold said arm in engagement with said' screw r r inaasei 3. In a tipforming device for billiard cues, and the like, the combination of abase, a carriage slidable on said base, a grip within the base to securean object, a head revoluble upon the carriage, a cutting blade on saidhead, a screw on the carriage, gearing connecting said head and screw, atiltable arm on the base adapted to engage said screw and a lever on thecarriage formed with a slide and depressions at the ends thereof, saidslide being adapted to secure the arm in engagement with the screw andsaid depressions being designed to receive said arm to permit itsdisengagement from said screw and hold the carriage with re spect to thebase.

4. In a tip forming device for billiard cues and the like, thecombination of a base, a carriage slidable on said base, a grip withinthe base to secure an object, a head revoluble upon the carriage, acutting blade on said head, a screw on the carriage, gearing connectingsaid head and screw, a tiltable, spring pressed arm on the base providedwith a threaded bearing and a lever on the carriage arranged to tiltsaid arm and hold said threaded bearing in engagement with said screw.

In a tip forming device for billiard cues, and the like, the combinationof a base, a carriage slidable on said base, a grip with in the base tosecure an object, a head revolu ble upon the carriage, a cutting bladeon said head, a screw on the carriage, gearing connecting said head andscrew, a tiltable arm on the base adapted to engage said screw, a springto normally disengage said arm from said screw, a lever on the carriagearranged to pass beneath one end of said arm and hold the same inengagement with said screw against the action of said spring and a catchto secure said lever beneath said arm. 7

6. In a tip forming device for billiard cues, and the like, thecombination of a base, a carriage slidable on said base, a grip withinthe base to secure an object, a head revoluble upon the carriage, acutting blade on said head, a screw on the carriage, a threaded bearingon the base adapted to mesh with said screw, a collar 'ecured to thehead and formed with a tooth thereon, and a gear wheel on the screwhaving radial notches therein to receive said tooth, the portions'of theperiphery of said wheel between said notches, being concave to receivethe periphcry of said collar.

7. In a tip forming device for billiard cues, and the like, thecombination of a base, a carriage slidable on said base, a grip withinthe base to secure an object, a head revoluble upon the carriage, acutting blade on said head, a screw revolubly mounted upon the carriageand operatively connected with the base to move the carriage thereon andgearing connecting said head and screw adapted to intermittently turnsaid screw and lock the same against rotation.

8. In a tip ii'orming device for billiard cues, and the like, thecombination of a base, a carriage slidable on said base, a grip withinthe base to secure an object, a head revoluble upon the carriage, acutting blade on said head, a screw revolubly mounted upon the carriageand operatively connected with the base to move the carriage thereon, atoothed collar on the head, a gear wheel on the screw formed withnotches therein to mesh intermittently with said toothed collar andmeans for locking said gear wheel against rotation during the intervalswhen the same is out of mesh with said collar.

9. In a tip forming device for billiard cues, and the like, thecombination of a base, a carriage slidable on said ba e, a grip withinthe base to secure an object, a head revoluble upon the carriage, acutting blade on said head, a collar on said head formed with a toothupon its outer periphery, a screw on the carriage, a gear wheel on thescrew having radial notches therein to receive said tooth and formedwith concave portions at its periphery between said notches to fitagainst the outer periphery of the collar and lock said wheel againstrotation, a tiltable arm on the base adapted to engage said screw, aspring to normally hold said arm from engagement with said screw and alever on the carriage arranged to pass beneath the arm, said lever beingprovided 100 with a slide to hold the arm in engagement with said screwand also with depressions at the ends of said slide to receive the armand permit the disengagement thereof from said screw.

10. In a tip forming device for billiard cues, and the like, thecombination of a base, a carriage slidable on said base, a grip with inthe base to secure an object, a head revoluble upon the carriage, acutting blade on 110 said head, a collar on said head forming with atooth upon its outer periphery, a screw on the carriage, a gear wheel onthe screw having radial notches therein to receive said tooth and formedwith concave 11 portions at its periphery between said notches to fitagainst the outer periphery of the collar and lock said wheel againstrotation, a tiltable arm on the base adapted to engage said screw, aspring to normally hold 120 said arm from engagement with said screw anda lever on the carriage designed to hold said arm in engagement withsaid screw.

11. In a tip forming device for billiard cues and the like, thecombination of two 125 members slidably connected, a grip on one member,cutting means revolubly mounted on the other member, and feedingmechanism connecting said members and actuated by said cutting means,said mechanism being 130 adapted to advanceone member upon the other,also to securesaid members With respect to each other and furtheradapted to be rendered inoperative to permit free slidmember, cuttingmeans revolubly mounted on the other member, and feedingmechanismconnecting said members and actuated Copies of this patent maybe obtained for five cents each, by addressing the Commissioner ofPatents,

intermittently by said cutting means, said mechanism being adapted toadvance one operative to permit free sliding movement of the members. 7

Whereof, I have hereunto subscribed my name to this specification.-

MARTIN BOHLIG,

Washington, D. C.

